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IC4201 Hi-Fi AUDIO MTS/SAP PROCESS IC-DETAIL BLOCK DIAGRAM, AN3662FBP
48
47
46
45
44
43
42
GND
MUTE
DEMODULATOR
CTL
I2C BUS
49
PILOT
DETECTOR
50
ST PLL
VCA
STEREO
51
+5V
FILTER
L-R
DEMODULATOR
SAP
52
DEMODULATOR
75us
LPF
DE-EMPHASIS
R CH
53
BS
54
MUTE
Hi-Fi
R
MIX
(L-R) / SAP
L
55
GND
SWITCH
R
NORMAL
+
56
MTS MODE
NORMAL
MUTE
L
L CH
MIX
57
L
Hi-Fi
R
BS
+12V
58
59
RF AGC
TUNER
LINE 1
RF AGC
L-CH
60
DETECTOR
SAP
LINE 2
L
LINE 3
MIX
61
R
62
MATRIX
TUNER
63
R-CH
dBX
NOISE
LINE 1
REDUCTION
LINE 2
64
LINE 3
V-REF
1
2
3
4
5
6
7
REC AUDIO SIGNAL
PB AUDIO SIGNAL
41
40
39
38
37
36
35
34
33
+5V
GND
A-MUTE(H)
NOISE REDUCTION
REC
/COMPRESSOR
/EXPANDER
PB
SWITCHING NOISE
COMPENSATOR
PB
REC
PB LPF
LIMITER
VCO
HPF
PC
REC LPF
NOISE
BPF
DETECTOR
FM
LIMITER
SW
MIX
BPF
HOLD
REC LPF
TIMING
PC
VCO
PB LPF
LIMITER
REC
PB
SWITCHING NOISE
COMPENSATOR
REC
NOISE REDUCTION
/COMPRESSOR
PB
/EXPANDER
GND
8
9
10
11
12
13
14
15
16
49
32
31
30
29
28
27
26
+5V
25
24
GND
23
22
21
20
19
18
17
PV-9661 / PV-9662
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